Handshake has another task for you to complete in Gray Zone Warfare, and it's called Helping Hand. Your task is to go to the nearest town and try to find some sensitive material hidden in a restaurant.
Helping Hand Quest | GUIDE | Gray Zone Warfare | Mithras
Like the previous missions in Gray Zone Warfare, you have little information on where to go and how to find it. Not only do you need to find the restaurant, but you also need to find a specific item to unlock the door on the top floor. Without that item, you can't complete this mission and you'll be stuck, unable to upgrade Handshake's salesperson.
To complete this task you will need a key, but like the Medical Detective quest, this key does not have a set drop point. All keys in Gray Zone Warfare have a chance to drop from NPCs. The exact key you are looking for should have "Attic" in the name, and when you inspect the item it should say "Restaurant Storage Key". The first part of the key's name varies based on the city closest to your Base Camp. You may find it if you are trying to find the body near the town hall during the No Man Left Behind quest.
If you are part of the Lamang Recovery Initiative and you are performing tasks in Pha Lang, the restaurant is located in the northeastern part of the city, at the map coordinates (203, 163).
